Golf-ball.



- PATENTED JULY 21, 19.03.

' G. T. KINGZETT.

GOLF BALL.

APPLICATION FILED SEPT. 2, 19oz.

N0 MODEL.

- elastic substances.

III!

UNITED STATES Patented July 21, 1903.

PATENT OFFICE.

coLF-BALL.

SPECIFICATION forming part of Letters Patent No. 734,462, dated July 21, 1903.

Application filed September 2, 1902. Serial No. 121.811. (No model.)

To all whom it may concern:

Beit known thatI, CHARLES THOMAS KING- ZETT, chemical manufacturer, a subject of the King of Great Britain, residing at Elmstead Knoll, Ohislehurst, in the county of Kent, England, have invented a certain new and useful Improvement in Golf-Balls, of which the following is a specification.

7 According to my invention I construct golfballs or portions of golf-balls of several alternating layers of gutta-percha and ,india-rubber or of other similar slightly and highly By this means the elasticity derived from the partial use of rubber is well distributed throughout their entirety and is not confined to one particular part.

In balls with a core of india-rubber thread or sheet the core really constitutes a hard al.- though elastic core, and the coating of guttapercha being only about one-eighth inch thick every impact from the-edge of an iron club is felt severely, and in the end the shell is cut through to the core or cracked, and then the ball is useless. Not so in my balls. The impact is communicated in a wave-like manner from layer to layer. In other words, they are better cushioned and more continuous in nature, so that after the blow the balls more easily recover their original shape. It. follows that my balls wear better and are easily remade by merely heating and remolding or, at worst, by adding a thin coating of guttapercha. My ballsKputt well, for by reason of the elasticity being better diffused they do not jump about so much when coming incontact with irregularities on the ground, as do balls whose elasticity is concentrated, so to speak, in the core of elastic thread or elastic sheet, respectively, p

In the drawings annexed I have illustrated three ways in which such balls may be made.

Figure l'represents a sheet of gutta-percha, say, about one-sixteenth inch thick; Fig. 2, a similar shorter and narrow sheet of indiarubber. Fig. 3 is'a longitudinal section of the sameafter they have been placed one over theother and then rolled together, so as to form a cylindrical roll. Fig. 4: shows a sec- 'in Fig. 3.

it has been compressed in a mold to bring it Fig. 6 shows a secto a truly spherical form. tion of a smaller ball formed in this way'incased in an outer casing of gotta-percha. Fig. 7 shows an india-rubber'ball surrounded by a roll of gutta-percha and india-rubber in alternating layers, the roll being shown in longitudinal section. Fig. 8 shows a section of same after the ends of the rollhave been roughly closed in by hand and the whole brought to an approximately spherical form.

.Fig. 9 shows anielevation of thefsain'e after of alternating-sheets. Fig. 13 shows this cylinder compressed to a spherical formand inclosed in an outer casing of gutta-percha. The sphere is shown in elevation and the fcasing in section.

PreferablyI place a strip of sheet indiarubber or onto a sheet of giitta-percha b of greater width and length and roll them up together when more or less heated to form a cylindrical roll, with a gutta-percha'exterior surface and with the side edges of the guttapercha sheet protruding outward beyond the side edges of the rubber 'sheet,"as illustrated The ends of the cylindrical roll are then when the roll is heated closed in by hand, so as tobring-it approximately to a spherical form,which may then be further comgutta-percha being first molded and placed and so on; or, as illustrated in Figs. 7 to 10,

a spherical core 6, of india-rubber or other material, may have a sheet of gutta-percha and a sheet of india-rubber wound around it, so

as to form a cylindrical roll and the ends of this roll then closed in to form a cylindrical ball, which may then be incased in an out-er casing of gutta-percha; or this core may be cylindrical, which will render the rolling of the sheets upon it very easy; or, as illustrated in Figs. 11 to 13, a spherical core of alternating layers (not rolled) of india-rubher and gutta-percha may be inclosed within an outer casing of gutta-percha.

I do not herein claim the method of making the balls herein shown and described, as such claims are made in my application for patent, Serial No. 14cl,87 5, filed February 4, 1903, and in my application, Serial No. 158,358, filed May 22, 1903.

Inasmuch as the rubber strips are hot and not under tension while being rolled, they are not under tension or are under very low tension inthe completed ball.

What I claim isl. A ball having in its composition a plurality of elastic layers of india-rubber which are unstretched or under low tension and each separately inclosed between layers of gutta-percha.

2. A ball having its inner portion composed wholly or partially of alternate layers of gutta-percha and of india-rubber which are unstretched or under low tension and having such inner portion inclosed in an outer en- Velop of gutta-percha.

3. A ball the inner portion of which is wholly or partially of india rubber strip Wound into a roll together with a strip of gutta-percha and molded into spherical form and having such inner portion inclosed in an outer casing of gutta-percha.

4. Aball the inner portion of which is composed wholly or partially of alternate strips of india-rubber and gutta-percha wound up together into a roll and in which the indiarubber strip is throughout its length inclosed in a sheath of gutta-percha;

5. A ball having in its composition a plurality of elastic layers of india-rubber, each separately inclosed between layers of guttapercha which layers of gutta percha are themselves all united to an outer envelop of gutta-percha.

CHARLES THOMAS KIN GZETT.

Witnesses:

JOHN HY. PAYNE, W. J. E. OWEN. 

